A recent update to iPadOS 27 has introduced a significant regression for users who rely on iPads for professional presentations. According to educator Teddy Svoronos, the update breaks a core functionality where an iPad can project a specific presentation or handout to an external screen via AirPlay while the user simultaneously interacts with other apps on the device. This workflow allows presenters to view private notes, manage polls, or control a PowerPoint presentation on a Mac without those private elements appearing on the audience's screen.
Under the new behavior in iPadOS 27, if a user has multiple windows open and taps on any app other than the one currently presenting, the external display automatically snaps to show the iPad's entire screen. This 'mirroring' effect can be jarring and embarrassing in a professional setting, as it reveals hidden information like student names or internal notes. The behavior varies by application: in GoodNotes, the presenter view returns only after tapping back on the app; in Keynote, the presentation exits entirely; and in PowerPoint, the app enters a state that requires restarting the presentation to proceed.
Svoronos suggests that Apple may have implemented this change to simplify how apps 'control' external displays, which was a confusing process in iPadOS 26. However, the current implementation prioritizes the most recently tapped app over the active presentation. To resolve this, Svoronos proposes a system where an app in 'presenter mode' maintains precedence on the external display until the presentation is intentionally stopped or the app is closed. For now, the author advises against using the current version of iPadOS for teaching or professional presentations until a fix is implemented or a workaround is identified.
This issue highlights a tension in Apple's design philosophy, where removing manual options to create a 'magical' user experience can occasionally result in a loss of granular control. While the update aims to streamline window management, it inadvertently compromises the privacy and utility of the device for those using it as a primary presentation tool. Svoronos has filed a formal feedback report with Apple (FB23615646) to address the regression.